In comets
That's not a term commonly used in astronomy. There is dust in the Solar System, and it is likely that part of the material of such dust came from the Sun.
New material was likely added to planets in a young solar system through processes like accretion and impacts from asteroids and comets. These small bodies collided with the growing planets, contributing to their mass and composition. Over time, these collisions helped shape the planets and their eventual characteristics.
anti matter
Believed by some to be a mighty spiritual being who is the ensouling life of the solar system. The material solar system is simply a physical manifestation (or body) of this living intelligence.
accretion disc
use everything dumb
Polaris is a star. It is likely that it has planets, i.e. that there is a related solar system, since most stars seem to have planets.
Most likely the sun.
The region of space that contains the material of our solar system is termed the interstellar medium. This is the space between stars that is filled with gas, dust, and other debris.
Hydrogen, Helium, and a scattering of other elements.
In that context a pint is nothing
It is thought that Asteroids are leftover material from unfinished planets.